<?php
namespace Common\Org\Upload;
/**
 * 检证文件类型类
 *
 * @author Silver
 */
class FileTypeValidation
{
    // 文件类型，不同的头信息
    private static $_fileFormats = array(
        'jp2' => '0000000C6A502020',
        '3gp' => '0000002066747970',
        '3gp5' => '0000001866747970',
        'm4a' => '00000020667479704D3441',
        'ico' => '00000100',
        'spl' => '00000100',
        'vob' => '000001BA',
        'cur' => '00000200',
        'wb2' => '00000200',
        'wk1' => '0000020006040600',
        'wk3' => '00001A0000100400',
        'wk4' => '00001A0002100400',
        'wk5' => '00001A0002100400',
        '123' => '00001A00051004',
        'qxd' => '00004D4D585052',
        'mdf' => '010F0000',
        'tr1' => '0110',
        'rgb' => '01DA01010003',
        'drw' => '07',
        'dss' => '02647373',
        'dat' => 'A90D000000000000',
        'db3' => '03',
        'qph' => '03000000',
        'adx' => '80000020031204',
        'db4' => '04',
        'n' => 'FFFE0000',
        'a' => 'FFFE0000',
        'skf' => '07534B46',
        'dtd' => '0764743264647464',
        'db' => 'D0CF11E0A1B11AE1',
        'pcx' => '0A050101',
        'mp' => '0CED',
        'doc' => 'D0CF11E0A1B11AE1',
        'xls'=> 'D0CF11E0A1B11AE1',
        'nri' => '0E4E65726F49534F',
        'wks' => 'FF00020004040554',
        'pf' => '1100000053434341',
        'ntf' => '4E49544630',
        'nsf' => '4E45534D1A01',
        'arc' => '41724301',
        'pak' => '5041434B',
        'eth' => '1A350100',
        'mkv' => '1A45DFA393428288',
        'ws' => '1D7D',
        'gz' => '1F8B08',
        'tar.z' => '1FA0',
        'ain' => '2112',
        'lib' => '213C617263683E0A',
        'msi' => 'D0CF11E0A1B11AE1',
        'vmdk' => '4B444D',
        'dsp' => '23204D6963726F73',
        'amr' => '2321414D52',
        'hdr' => '49536328',
        'sav' => '24464C3240282329',
        'eps' => 'C5D0D3C6',
        'pdf' => '25504446',
        'fdf' => '25504446',
        'hqx' => '2854686973206669',
        'log' => '2A2A2A2020496E73',
        'ivr' => '2E524543',
        'rm' => '2E524D46',
        'rmvb' => '2E524D46',
        'ra' => '2E7261FD00',
        'au' => '646E732E',
        'cat' => '30',
        'evt' => '300000004C664C65',
        'asf' => '3026B2758E66CF11',
        'wma' => '3026B2758E66CF11',
        'wmv' => '3026B2758E66CF11',
        'wri' => 'BE000000AB',
        '7z' => '377ABCAF271C',
        'psd' => '38425053',
        'sle' => '414376',
        'asx' => '3C',
        'xdr' => '3C',
        'dci' => '3C21646F63747970',
        'manifest' => '3C3F786D6C2076657273696F6E3D',
        'xml' => '3C3F786D6C2076657273696F6E3D22312E30223F3E',
        'msc' => 'D0CF11E0A1B11AE1',
        'fm' => '3C4D616B65724669',
        'mif' => '56657273696F6E20',
        'gid' => '4C4E0200',
        'hlp' => '4C4E0200',
        'dwg' => '41433130',
        'syw' => '414D594F',
        'abi' => '414F4C494E444558',
        'aby' => '414F4C4442',
        'bag' => '414F4C2046656564',
        'idx' => '5000000020000000',
        'ind' => '414F4C494458',
        'pfc' => '414F4C564D313030',
        'org' => '414F4C564D313030',
        'vcf' => '424547494E3A5643',
        'bin' => '424C4932323351',
        'bmp' => '424D',
        'dib' => '424D',
        'prc' => '424F4F4B4D4F4249',
        'bz2' => '425A68',
        'tar.bz2' => '425A68',
        'tbz2' => '425A68',
        'tb2' => '425A68',
        'rtd' => '43232B44A4434DA5',
        'cbd' => '434246494C45',
        'iso' => '4344303031',
        'clb' => '434F4D2B',
        'cpt' => '43505446494C45',
        'cru' => '43525553482076',
        'swf' => '465753',
        'ctf' => '436174616C6F6720',
        'dms' => '444D5321',
        'adf' => '5245564E554D3A2C',
        'dvr' => '445644',
        'ifo' => '445644',
        'cdr' => '52494646',
        'vcd' => '454E545259564344',
        'mdi' => '4550',
        'e01' => '4C5646090D0AFF00',
        'evtx' => '456C6646696C6500',
        'qbb' => '458600000600',
        'cpe' => '464158434F564552',
        'flv' => '464C56',
        'aiff' => '464F524D00',
        'eml' => '582D',
        'gif' => '47494638',
        'pat' => '47504154',
        'gx2' => '475832',
        'sh3' => '4848474231',
        'tif' => '4D4D002B',
        'tiff' => '4D4D002B',
        'mp3' => '494433',
        'koz' => '49443303000000',
        'crw' => '49491A0000004845',
        'cab' => '4D534346',
        'lit' => '49544F4C49544C53',
        'chi' => '49545346',
        'chm' => '49545346',
        'jar' => '5F27A889',
        'jg' => '4A47040E000000',
        'kgb' => '4B47425F61726368',
        'shd' => '68490000',
        'lnk' => '4C00000001140200',
        'obj' => '80',
        'pdb' => 'ACED000573720012',
        'mar' => '4D41723000',
        'dmp' => '504147454455',
        'hdmp' => '4D444D5093A7',
        'mls' => '4D563243',
        'mmf' => '4D4D4D440000',
        'nvram' => '4D52564E',
        'ppz' => '4D534346',
        'snp' => '4D534346',
        'tlb' => '4D53465402000100',
        'dvf' => '4D535F564F494345',
        'msv' => '4D535F564F494345',
        'mid' => '4D546864',
        'midi' => '4D546864',
        'dsn' => '4D56',
        'com' => 'EB',
        'dll' => '4D5A',
        'drv' => '4D5A',
        'exe' => '4D5A',
        'pif' => '4D5A',
        'qts' => '4D5A',
        'qtx' => '4D5A',
        'sys' => 'FFFFFFFF',
        'acm' => '4D5A',
        'ax' => '4D5A900003000000',
        'cpl' => 'DCDC',
        'fon' => '4D5A',
        'ocx' => '4D5A',
        'olb' => '4D5A',
        'scr' => '4D5A',
        'vbx' => '4D5A',
        'vxd' => '4D5A',
        '386' => '4D5A',
        'api' => '4D5A900003000000',
        'flt' => '76323030332E3130',
        'zap' => '4D5A90000300000004000000FFFF',
        'sln' => '4D6963726F736F66742056697375616C',
        'jnt' => '4E422A00',
        'jtp' => '4E422A00',
        'cod' => '4E616D653A20',
        'dbf' => '4F504C4461746162',
        'oga' => '4F67675300020000',
        'ogg' => '4F67675300020000',
        'ogv' => '4F67675300020000',
        'ogx' => '4F67675300020000',
        'dw4' => '4F7B',
        'pgm' => '50350A',
        'pax' => '504158',
        'pgd' => '504750644D41494E',
        'img' => 'EB3C902A',
//        'zip' => '504B0304140000',
        'zip' => '504b03040a0000',
        'docx' => '504B030414000600',
        'pptx' => '504B030414000600',
        'xlsx' => '504B030414000600',
        'kwd' => '504B0304',
        'odt' => '504B0304',
        'odp' => '504B0304',
        'ott' => '504B0304',
        'sxc' => '504B0304',
        'sxd' => '504B0304',
        'sxi' => '504B0304',
        'sxw' => '504B0304',
        'wmz' => '504B0304',
        'xpi' => '504B0304',
        'xps' => '504B0304',
        'xpt' => '5850434F4D0A5479',
        'grp' => '504D4343',
        'qemu' => '514649',
        'abd' => '5157205665722E20',
        'qsd' => '5157205665722E20',
        'reg' => 'FFFE',
        'sud' => '52454745444954',
        'ani' => '52494646',
        'cmx' => '52494646',
        'ds4' => '52494646',
        '4xm' => '52494646',
        'avi' => '52494646',
        'cda' => '52494646',
        'qcp' => '52494646',
        'rmi' => '52494646',
        'wav' => '52494646',
        'cap' => '58435000',
        'rar' => '526172211A0700',
        'ast' => '5343486C',
        'shw' => '53484F57',
        'cpi' => 'FF464F4E54',
        'sit' => '5374756666497420',
        'sdr' => '534D415254445257',
        'cnv' => '53514C4F434F4E56',
        'cal' => 'B5A2B0B3B3B0A5B5',
        'info' => 'E310000100000000',
        'uce' => '55434558',
        'ufa' => '554641C6D2C1',
        'pch' => '564350434830',
        'ctl' => '56455253494F4E20',
        'ws2' => '575332303030',
        'lwp' => '576F726450726F',
        'bdr' => '5854',
        'zoo' => '5A4F4F20',
        'ecf' => '5B47656E6572616C',
        'vcw' => '5B4D535643',
        'dun' => '5B50686F6E655D',
        'sam' => '5B7665725D',
        'cpx' => '5B57696E646F7773',
        'cfg' => '5B666C7473696D2E',
        'cas' => '5F434153455F',
        'cbk' => '5F434153455F',
        'arj' => '60EA',
        'vhd' => '636F6E6563746978',
        'csh' => '6375736800000002',
        'p10' => '64000000',
        'dex' => '6465780A30303900',
        'dsw' => '64737766696C65',
        'flac' => '664C614300000022',
        'dbb' => '6C33336C',
        'acd' => '72696666',
        'ram' => '727473703A2F2F',
        'dmg' => '78',
        'lgc' => '7B0D0A6F20',
        'lgd' => '7B0D0A6F20',
        'pwi' => '7B5C707769',
        'rtf' => '7B5C72746631',
        'psp' => '7E424B00',
        'wab' => '9CCBCB8D1375D211',
        'wpf' => '81CDAB',
        'png' => '89504E470D0A1A0A',
        'aw' => '8A0109000000E108',
        'hap' => '91334846',
        'skr' => '9501',
        'gpg' => '99',
        'pkr' => '9901',
        'qdf' => 'AC9EBD8F0000',
        'pwl' => 'E3828596',
        'dcx' => 'B168DE3A',
        'tib' => 'B46E6844',
        'acs' => 'C3ABCDAB',
        'lbk' => 'C8007900',
        'class' => 'CAFEBABE',
        'dbx' => 'CFAD12FE',
        'dot' => 'D0CF11E0A1B11AE1',
        'pps' => 'D0CF11E0A1B11AE1',
        'ppt' => 'D0CF11E0A1B11AE1',
        'xla' => 'D0CF11E0A1B11AE1',
        'xls' => 'D0CF11E0A1B11AE1',
        'wiz' => 'D0CF11E0A1B11AE1',
        'ac_' => 'D0CF11E0A1B11AE1',
        'adp' => 'D0CF11E0A1B11AE1',
        'apr' => 'D0CF11E0A1B11AE1',
        'mtw' => 'D0CF11E0A1B11AE1',
        'opt' => 'D0CF11E0A1B11AE1',
        'pub' => 'D0CF11E0A1B11AE1',
        'rvt' => 'D0CF11E0A1B11AE1',
        'sou' => 'D0CF11E0A1B11AE1',
        'spo' => 'D0CF11E0A1B11AE1',
        'vsd' => 'D0CF11E0A1B11AE1',
        'wps' => 'D0CF11E0A1B11AE1',
        'ftr' => 'D20A0000',
        'arl' => 'D42A',
        'aut' => 'D42A',
        'wmf' => 'D7CDC69A',
        'efx' => 'DCFE',
        'one' => 'E4525C7B8CD8A74D',
        'rpm' => 'EDABEEDB',
        'gho' => 'FEEF',
        'ghs' => 'FEEF',
        'wp' => 'FF575043',
        'wpd' => 'FF575043',
        'wpg' => 'FF575043',
        'wpp' => 'FF575043',
        'wp5' => 'FF575043',
        'wp6' => 'FF575043',
        'jfif' => 'FFD8FF',
        'jpe' => 'FFD8FF',
        'jpeg' => 'FFD8FF',
        'jpg' => 'FFD8FF',
        'mof' => 'FFFE23006C006900',
        'ipa' => '504B03040A',
    );

    /**
     * 检查文件类型
     *
     * @param string $filePath 文件路径
     * @param string $fileExt 文件扩展名
     *
     * @return boolean
     */
    public static function validation($filePath, $fileExt)
    {
        if($fileExt=='txt' || $fileExt=='htm' || $fileExt=='html' || $fileExt=='exe' || $fileExt=='zip' || $fileExt=='rar') return true;
        // 文件格式未知
        if (!isset(self::$_fileFormats[$fileExt])) {
            return false;
        }
        $length = strlen(self::$_fileFormats[$fileExt]);
        $bin = self::_readFile($filePath, $length);
        $fileHead = @unpack("H{$length}", $bin);

        // 判断文件头
        if (strtolower(self::$_fileFormats[$fileExt]) == $fileHead[1]) {
            return true;
        }
        return false;
    }

    /**
     * 读取文件内容
     *
     * @param string $filePath 文件路径
     * @param integer $size
     *
     * @return string
     */
    private static function _readFile($filePath, $size)
    {
        $file = fopen($filePath, "rb");
        $bin = fread($file, $size);
        fclose($file);
        return $bin;
    }
}

//调用方法：
//require './class_filetypevalidation.php';
// 文件路径
//$filePath = "D:/test.png";
//$x = FileTypeValidation::validation($filePath, 'zip');
//var_dump($x);
?>